Jar



April 13, 1937. B, F CONNER 2,077,216

` JAR Filed Oct. l, 1936 i i i i i i Patented pr. 13, 1937 UNITED STATES JAR Benjamin F. Conner, West Hartford, Conn., assignor to Colts Patent Fire Arms Manufacturing Co., Hartford, Conn., a corporation of Connecticut Application ctober 1, 1936, Serial No. 103,554

4 Claims.

This invention relates primarily to jars of the type disclosed in my-copending application for Jars, Serial No. 18,031, led April 24, 1935, which jars are primarily intended for containing cos- 5 metio preparations including salves, cold creams and other preparations of a pastelike consistency and also including powders. A jar of this type consists of two separate thin-Walled members, each of which may be molded from a material of the synthetic resin class. The inner member is formed for engagement with a closure or cap and is adapted for containing the cream or other cosmetic preparation; and the outer o-r base member serves to support the inner kor containing member and to provide at least a portion of the desired exterior contour or design. The two members are engaged with each other in such manner as to provide resistance to separation and in such manner as to prevent relative rotation. The two jar members are ordinarily formed of different materials. The diiference between the two materials may be primarily a diierence in color only, but usually it is necessary for the inner or containing member to be formed of a material highly resistant to the chemical action of the particular preparations which the jar is to contain. The outer or base member need not be so highly resistant to chemical action and for this a different and less expensive material may be used.

In my aforesaid application, of which this present application is a continuation-in-part, I have disclosed several embodiments of the invention which is therein broadly claimed; but the more specific claims of the said application are directed 35 to those particular embodiments wherein the inner member and the outer member engage each other near the top of the jar and near the periphery thereof. The present application relates more specically to those embodiments of the 40 aforesaid broad invention wherein the inner or containing member and the outer or base member are positively connected with each other at their bottoms.

Firm engagement must be effected between the 45 members to hold them in assembled relationship, frictional engagement being relied upon in the constructions to which the claims of the said prior application are particularly directed. In order to obtain such advantages as light weight, economy 50 of material and satisfactory curing, the walls of the members are made quitethin, and they are therefore unavoidably somewhat fragile. When the frictional engagement is at or near the tops of the members, there is a tendency to break the '55 thin walls, at least that of the outer member,

when the members are forced together. In the constructions specifically claimed in the prior application, the shrinkage Aof the inner member to an extent greater than that of the outer member may cause the parts to fit so loosely as to be too 5 readily separable from each other; or if the extent of shrinkage of the outer member is greater than that of the inner member, it may be impossible to assemble the parts at all, or attempted assembly may cause the breaking of one member or the 10' other, usually the outer member, as already mentioned. rIhe shrinkage of the parts may in some instances continue for a long period of time, with the result that breakage may occur long after the jar has left the manufacturer and is in the 15 hands of the dealer or of the user. y

In the constructions specifically claimed in the prio-r application, in addition to the difficulties due to differentials in shrinkage, further difficulties are encountered when the jar is used for. a 20 cosmetic cream or a similar product which is poured into the jar in a hot fluid or semi-fluid condition. The hot cream heats the jar, and more particularly the inner member thereof, and this heating and resultant greater expansion of 25 the inner member may cause breakage of the outer member, even though the two members have resisted the initial strains resulting from assembly.

In my co-pending application for Jars, Serial No. 103,553 iiled on even date herewith, I have disclosed and broadly claimed several alternative constructions wherein there is little or no frictional engagement between the two members at their upper peripheries where they are weakest and where their diameters are the greatest, and wherein the frictional engagement for holding the members in assembled relationship is effected at points which are near the bottom where the members are stronger. In the constructions shown in the last said application, the points of 40 frictional engagement are preferably spaced inward from the peripheries so that the diameters are substantially less.

The constructions last above mentioned avoid any tendency to break or excessively stress the thin unsupported upper walls of the members under normal assembly conditions, and they also greatly minimize the diiculties which frequently arise, as already explained, from abnormal or unavoidable differences in shrinkage or expansion; but under some circumstances and with some materials it is preferable to entirely avoid anyreliance whatsoever upon friction and to connect the two jar members with each other positively.. In accordance with the present invention .the said members are connected as last above stated, preferably by means associated with their respective bottom walls.

In` the accompanying drawing I have shown several embodiments of the invention, but it will be understood that the drawing is intended for illustrative purposes only and is not kto be construed as defining or limiting the scope of the invention, the claims forming a part of this specification being relied upon for that purpose. I Y

Of the drawing:

Fig. 1 is a side view of a jar embodying the in" vention, a portion of the closure .being broken away to show the closure retaining threads.

Fig. 2 is a vertical central sectional view through the jar shown in Fig. 1, the closure being omitted.

Fig. 3 is a fragmentary vertical -sectional view taken along the line 3 3 of Fig. 2.

Fig.` 4 is a view similar to Fig. 2 but showing an alternative embodiment of the invention.

Fig. '5 is a view similar to Fig. 2 but showing another alternative embodiment of the invention. y

Referring to the drawing and more particularly to Figs. 1, 2 and 3 thereof, I and 2 represent respectively the two main members constituting the jar. The member I is designated as the inner `or containing member, and the member 2 is designated as the outer or base member.

'I'he inner or containing member I is aithinwalled cup-shaped member preferably molded from ka material of the synthetic resin class and 'it is preferably of such shape that its interior diameter at the top is at least as large as the interior diameter below the top. The bottom wall lof the containing member is indicated at 3. The `containing member Iv is threaded adjacent its upperperiphery as indicated fat 4, being thus .adapted vfor engagement with a threaded closure 5 of the cap type. Y 'I'he outer or base member 2 is so related to lthe containing member I as to permit the said containing member to be assembled vert-ically `downward with respect thereto. The base member has a peripheral annular portion 6 which is in engagement adjacent its top with an annular portion of the containing member I, and the base member preferably has a bottom wall 'I which is positioned beneath the containing member. While I do not necessarily so limit myself, the annular portion 6 of the base member is shown `as `surrounding the entire lower portion of the vent lateral displacement of one of the members with respect to the other.

In accordance with the present invention I provide means structurally separate from the containing member and 'from the base member and engaging both of the said members to hold them in assembled relationship. The said structurally separate means may advantageously be associated A`with the bottom walls .of the two members for connecting them in such manner as to positively prevent the members from separating. As sho-wn in Fig. 2, the bottom wall 3 of the 4containing member I is provided with a. .downward iitendng plug I0 which is threaded as indicated at II. The upper surface of the thread constitutes an upward exposed shoulder. The plug I0 extends through a hole I2 in the bottom wall 1 of the outer member 2, and the thread II is engaged by a threaded nut I3 which engages bottom surface of the bottom wall 'I. The plug I0 and the nut I3 thus serve to prevent relative kupward movement of the containing member.

Preferably serrations are provided at I4 on the bottom of the flange 8 and on the top of the an- *nu-lar portion 6. These serrations interengage as shown in Fig. 3 to prevent relative rotative movement between the members when they are held together as already described.

Inasmuch as friction resulting from radial pressure is entirely eliminated as a factor in holding the jar members in assembled relationship, there is no tendency for the member to separate or be broken as the result of even extreme variations in shrinkage or in expansion.

vIn the alternative construction shown in Fig. 4, the inner .or containing member Ia is similar to 4the containing member I shown in Fig. 2, except that a dierent retaining means is provided at the bottom. The outer or base member 2 is or may be identical in construction with the mem.- ber 2 shown in Fig. 2. Formed on the bottom wall 3a of the containing member Ia is a hollow boss I9@ which is internally threaded at Il, The vupper surface of the thread constitutes an upward exposed shoulder. vAn externally threaded screw I3'3L is provided which Yprojects through the hole I2 in the bottom wall -1 and engages the internal thread I la of the boss Illa. By virtue of the construction shown 'the two members are positively held against relative movement.

In the alternative construction shown in Fig. Y5, the inner or lcontaining member Ib is similar to the members I and 'Ia already described excepting that a different retaining means is provided at the bottom. The outer or base member 2b is or may be similar tothe member 2 already described, except that a diiferent retaining means is pro-vided at the bottom; As shown, the bottom wall 3b of the member Ib is provided with a down` ward extending hollow plug Illb which is provided with an external projection or thread IIb the upper surface'of the projection o-r thread constituting-an upward facing shoulder. Formed on the bottom wall 'Ib of the member 2b is a hollow or apertured boss I5 constituting a socket for receiving the plug Ib. The interior surface of the socket is provided with an internal projection or thread I6, the lower surface of which'conf The pro stitutes a downward facing shoulder. jections or threads Ilb and I5 do not directly engage with each other, and in order that the parts may be held in the desired relationship the socket is filled with a body I'I of a hardened plastic material as for instance sealing wax. It will be understood that in assembly a small quantity of molten wax is pourned into the socket I5, the inner member being then put in place while the wax is still soft. As the wax hardens it forms the top at least as large as is the interior diameter below the top, a base member adapted to permit the said containing member to be assembled vertically downward with respect thereto, 5 the said base member having a peripheral annular portion which is in engagement adjacent its top with an annular portion of the containing member and having a centrally apertured bottom wall positioned beneath the containing l member, interengaging means on the said annular portion of the base member and on the annular portion of the containing member for positively preventing relative rotation between the said members, a downward extending prol jection on the bottom .of the containing member having an upward facing shoulder thereon, and means engaging the centrally apertured bottom wall of the base member and engaging the said shoulder on the projection to positively prevent relative upward movement of the containing member.

2. The combination in a jar of the class described, of a thin-walled cup-shaped molded containing member externally threaded adjacent its upper periphery for engagement with a closure of the cap type and having its interior diameter at the top at least as large as is the interior diameter below the top, the said member having a thin outward projecting annular flange immediately below the thread, a molded base member adapted to permit the said containing member to be assembled vertically downward with respect thereto, the said base member having an annular portion which surrounds the containing member and is in engagement at its top edge with the bottom surface of the said flange and having a bottom wall positioned beneath the containing member, interengaging means on the said annular portion of the base member and on the ilange of the containing member for positively preventing relative rotation between the said members, a downward extending projection on the bottom of the containing member having an upward facing shoulder thereon, and means engaging the bottom wall of the base member and engaging the said shoulder on the projection to positively prevent relative upward movement of the containing member.

3. The combination in a jar of the class described, of a thin-walled cup-shaped moldedv containing member adapted at its upper nperiphery for engagement with a closure of the cap type and having its interior diameter at the top at least as large as is the interior diameter below the top, a base member adapted to permit the said containing member to be assembled vertically downward with respect thereto and having a centrally apertured bottom wall positioned beneath the containing member, the said base member having a peripheral annular portion which is in engagement adjacent its; top edge with an annular portion of the containing member, a downward extending threaded projection on the bottom of the containing member positioned in register with the aperture in the bottom wall of the base member, and an independently rotatable nut engaging the bottom surface of the bottom Wall of the base member adjacent the said aperture and having threaded engagement with the projection on the containing member to hold the latter in place.

4. The combination in a jar of the class described, of a thin-walled cup-shaped molded containing member adapted at its upper periphery for engagement With a closure of the cap type and having its interior diameter at the top at least as large as is the inte-rior diameter below the top, a molded base member adapted to permit the said containing member to be assembled vertically downward with respect thereto, the said base member having a peripheral annular portion which is in engagement adjacent its top with an annular portion of the containing member and having a bottom wall positioned beneath the containing member, a dow'n- Ward extending projection on the bottom of the containing member having an upward facing shoulder thereon, a socket on the bottom wall of the base member positioned to receive the said projection and having a downward facing shoulder therein, and a body of hardened plastic material in the socket surrounding the projection and serving to positively prevent upward movement of the containing member.

BENJAMIN F. CO'NNER. 

